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Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
Oxygen-Hemoglobin ... MatthewHoMD #Oxygen #Hemoglobin ... Dissociation #Curve #pathophysiology
Oxygen Delivery Equation
DO2 = CO x {(1.39 x Hb x sO2) + (PaO2 x 0.03)}
DO2 =
Concentration of Hemoglobin ... oxygen-carrying capacity of hemoglobin ... saturation of effective hemoglobin ... Number of baskets = Hemoglobin ... Delivery #Equation #pathophysiology
Pulse Oximetry Summary
Pulse oximetry is the non-invasive continuous measurement of the oxygen saturation of hemoglobin. It
saturation of hemoglobin ... that oxy- & deoxy hemoglobin ... #critcalcare #pathophysiology
Biochemistry and Metabolism of Bilirubin
Hemolysis → Hemoglobin → Heme → Biliverdin → Unconjugated Bilirubin (a.k.a. "indirect
Bilirubin Hemolysis → Hemoglobin ... Biochemistry #Metabolism #pathophysiology
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
saturation of hemoglobin ... loss) or abnormal hemoglobin ... diagnosis #causes #pathophysiology
Oxygen Hemoglobin Dissociation curve

Curva de disociacion de oxi-hemoglobina
 #Cardiology#CEM
Oxygen Hemoglobin ... disociacion de oxi-hemoglobina
Hypophosphatemia and Hypoxia - Pathophysiology

↓ Phosphate leads to ↓ red cell 2,3-DPG and a  reduction
and Hypoxia - Pathophysiology ... a shift in the hemoglobin ... respiratory #hypoxia #pathophysiology
Thalassemias on Hemoglobin Electrophoresis
Beta-Thalassemia:
 • Major
 • Intermediate
 • Trait
Alpha Thalassemia:
 • Trait-1 (α α/ α-)
Thalassemias on Hemoglobin ... or (α α/ --) • Hemoglobin ... H (α -/ --) • Hemoglobin ... Barts(- -/ --) Hemoglobin ... #Thalassemias #Hemoglobin
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
SS disease, Hemoglobin ... SC disease, Hemoglobin ... Hemoglobin C Crystals ... : Hemoglobin C disease ... , Hemoglobin SC
The differential diagnosis for an elevated MCHC (mean corpuscular hemoglobin concentration) includes:

Conditions with Abnormal RBCs:
 •
mean corpuscular hemoglobin ... Sickle cells • Hemoglobin ... Hemolysis (i.e., free hemoglobin